CVE-2026-43006
kernel: ELSA-2026-21557: kernel security update (IMPORTANT)
CVE-2026-43006 is fixed in 94 products on 1 platform, first by RHSA-2026:21557, released May 6, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
IMPORTANT
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0012
2nd percentile
ELSA-2026-21557: kernel security update (IMPORTANT)
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel · RHEL 10 | 6.12.0-211.18.1.el10_2 | RHSA-2026:21557 | May 6, 2026 |
| kernel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel · rocky 10 | 0:6.12.0-211.18.1.el10_2 | RLSA-2026:21557 | Jun 4, 2026 |
| kernel-64k · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-debug · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-debug-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-debug-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-debug-devel-matched · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-debug-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-debug-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-debug-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-devel-matched · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-64k-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-abi-stablelists · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-abi-stablelists · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-core · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-cross-headers · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-cross-headers · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-debug · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-debug · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-debug-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-debug-core · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-debug-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-debug-devel · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-debug-devel-matched · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-debug-devel-matched · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-debug-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-debug-modules · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-debug-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-debug-modules-core · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-debug-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-debug-modules-extra · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-debug-uki-virt · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-debug-uki-virt · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-devel · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-devel-matched · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-devel-matched · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-doc · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-doc · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-headers · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-headers · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-livepatch-6.18.25-52.107 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-modules · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-modules-core · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-modules-extra · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-modules-extra-matched · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-modules-extra-matched · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-rt · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-debug · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-debug-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-debug-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-debug-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-debug-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-debug-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-64k-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-debug · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-debug-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-debug-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-debug-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-debug-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-debug-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-rt-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-tools · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-tools · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-tools-libs · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-tools-libs · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-tools-libs-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-tools-libs-devel · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-uki-virt · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-uki-virt · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-uki-virt-addons · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-uki-virt-addons · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| kernel-zfcpdump · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-zfcpdump-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-zfcpdump-devel · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-zfcpdump-devel-matched · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-zfcpdump-modules · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-zfcpdump-modules-core · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel-zfcpdump-modules-extra · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| libperf · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| libperf · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| linux · Debian 14 | 6.19.12-1 | DEBIAN-CVE-2026-43006 | May 15, 2026 |
| perf · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| perf · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| python3-perf · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| python3-perf · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| rtla · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| rtla · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
| rv · almalinux 10 | 6.12.0-211.18.1.el10_2 | ALSA-2026:21557 | May 28, 2026 |
| rv · ol 10 | 0:6.12.0-211.34.1.el10_2 | ELSA-2026-21557 | Jul 28, 2026 |
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